Please create an empty dynamic.css file in woopress-child theme folder and set permissions 777 for the file + add wp_enqueue_style( 'dynamic-css', get_stylesheet_directory_uri() . '/dynamic.css' ); in woopress-child/functions.php file. Then go to Theme Options and re-save them.
If the problem won’t be solved, provide us with temporary wp-admin and FTP access in the Private Content area.
